1. What is the discount yield, the simple yield, and the compound yield on a $10,000 nine month (270 day) treasury bill that cost $9,676? What are the same yields on a $10,000 six-month (180-day) piece of commercial paper that cost $9,721?
2. What are the discount yield and the true annual yield on a six-month, $10,000 Treasury bill purchased for $9,589?